The best, and maybe the last, aquarium filter media bag you'll ever buy. The 180 micron bag features a resealable locking closure and durable, non-stitched, welded seams for easy, long-lasting use. Simply place desired chemical filter media such as Seachem Purigen and close The Bag using the resealable locking closure. For best results, make sure aquarium water flows through the filled media bag.

The Bag is chemically inert and resistant to bleach, caustics, acids or other harsh environmental exposure likely to take place during regeneration of filter media. 180 micron interlocking mesh holds even the finest resin media. 5" x 10" size.

Mechanical filtration can greatly improve the health of most aquariums, and is also important for the efficiency of your biological filtration. The process is simple: mechanical media strains solid debris.

Biological filtration is the action of bacteria breaking down dangerous ammonia, converting it to nitrite, and then converting nitrite to less toxic nitrate. This article discusses how the process works.

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The Bag 5&quot; x 10&quot;
3.3
5
4
4

no leakage here
Great product! It is the only bag I put my Purigen in. The zip tie does not allow any leakage. I dont have to worry about media fouling my canister filters. Nothing gets out!
June 13, 2015

Holds small particulates well
Best bag you can buy. None better on the market. Very durable.
November 20, 2013

not what I expected
I have been using Seachem products for over 20 years. Thought I would give this a try. The only good thing about it is the bag is indestructable.
But, it is slippery. and water won't go through it-it is too fine a mesh, or whatever it is made of. Went back to using nylon stockings for bags. Hey, they work well and have for me for 25 years.
These bags might be good for Purigen, but that only. I am a bit dissappointed.
July 13, 2012

Difficult to Use
For me it was impossible to properly close the bag, so it could fit in my Aqua-clear 30, there are no directions on how to properly use.
And the bottle of Purigen that I bought is wasted, as there are no other bags 180-micron or less that are available.
Very disappointed..
September 10, 2013

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The picture seems like there are 3 bags per package (though appears to be connected?). Or is that just one big bag? Is it possible to cut the bag and make 2 bags? I would appreciate if I can see some pictures.

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